3IXV
Scorpion Hemocyanin resting state pseudo atomic model built based on cryo-EM density map
ELECTRON MICROSCOPY
| Sample |
|---|
| Hemocyanin from scorpion Pandinus imperator |
| Specimen Preparation | |
|---|---|
| Sample Aggregation State | PARTICLE |
| Vitrification Instrument | FEI VITROBOT MARK I |
| Cryogen Name | ETHANE |
| Sample Vitrification Details | |
| 3D Reconstruction | |
|---|---|
| Reconstruction Method | SINGLE PARTICLE |
| Number of Particles | 17500 |
| Reported Resolution (Å) | 6.8 |
| Resolution Method | FSC 0.5 CUT-OFF |
| Other Details | Final refinement using FRM2D (Fast Rotational Matching) image alignment method |
| Refinement Type | |
| Symmetry Type | POINT |
| Point Symmetry | C2 |
| Map-Model Fitting and Refinement | |||||
|---|---|---|---|---|---|
| Id | 1 | ||||
| Refinement Space | |||||
| Refinement Protocol | |||||
| Refinement Target | |||||
| Overall B Value | |||||
| Fitting Procedure | |||||
| Details | DETAILS--rigid body fitting followed by flexible fitting using Situs | ||||
| Data Acquisition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Detector Type | KODAK SO-163 FILM | ||||||||
| Electron Dose (electrons/Å**2) | 18 | ||||||||
| Imaging Experiment | 1 |
|---|---|
| Date of Experiment | 2007-05-31 |
| Temperature (Kelvin) | 101 |
| Microscope Model | JEOL 3200FSC |
| Minimum Defocus (nm) | 1000 |
| Maximum Defocus (nm) | 3500 |
| Minimum Tilt Angle (degrees) | |
| Maximum Tilt Angle (degrees) | |
| Nominal CS | 4.1 |
| Imaging Mode | BRIGHT FIELD |
| Specimen Holder Model | JEOL 3200FSC CRYOHOLDER |
| Nominal Magnification | 50000 |
| Calibrated Magnification | |
| Source | FIELD EMISSION GUN |
| Acceleration Voltage (kV) | 300 |
| Imaging Details | JEOL 3200FSC MDS low dose method |
| EM Software | ||
|---|---|---|
| Task | Software Package | Version |
| MODEL FITTING | MODELLER | |
| MODEL FITTING | Situs | |
| MODEL FITTING | UCSF Chimera | |
| RECONSTRUCTION | EMAN | |
| Image Processing | ||||
|---|---|---|---|---|
| CTF Correction Type | CTF Correction Details | Number of Particles Selected | Particle Selection Details | |
| each micrograph | ||||
